Datatype: uvbyCCD

This datatype collects the recent CCD photometric observations of
stars in open clusters made in the Strömgren uvby system.

The uvby CCD data are also often associated with observations of the Hydrogen Balmer ß
line (uvby ß). As ß data are found in many publications, sometimes
associated with UBV data, they are collected separately in the database. The
corresponding datatype is betaccd.